Hempsulate
A low carbon alternative plaster and render
with high performance insulation properties

Hempsulate is a a new product manufactured by Cornish Lime. It is made from
hemp, lime and recycled minerals. Hempsulate is a low carbon alternative to gypsum
based plasters and renders. It offers numerous benefits to a building and its
users and has particularly good thermal qualities - hence its name. Being breathable
it makes for an ideal material to promote a healthy indoor environment or counter
the effects of "sick building syndrome".

Hempsulate comes ready to
apply, is easy to use and sets faster than traditional limes. Owing to its low
density it has a greater coverage rate than a normal sand/lime mix making it
highly economical to the end user. It is a perfect material for renovation work
or as a practical, healthy alternative in new build and hemp has long been known
to have good thermal properties.

Application

Hempsulate plaster can be used for
backing coats and finish coats. The insulating plaster has a rough texture and
is designed for use as a backing coat. The skim plaster has a very smooth finish.

Shelf
Life

Hempsulate plaster will remain workable as long as it is in airtight bags,
however, we recommend using it within 6 months of purchase.

Coverage

1000kg of
Hempsulate will cover 38.2m2 at a depth of 20mm, 25.6m2 at a depth of 30mm and
19.2m2 at a depth of 40mm.

Working Characteristics

Hempsulate plaster is supplied
ready to use, however, some plasterers may prefer a slightly wetter consistency.
A small amount of water can be added but care should be taken not to over-wet
the plaster as this can have an adverse effect on drying time, shrinkage and
strength.

Drying Time

The drying time will depend upon the conditions in which it is
used and the moisture content and porosity of the background it is applied to.
Hempsulate will dry quicker than sand/lime putty plasters. The table below is
meant as a guide only:

Hempsulate Drying time

10oC to 15oC

20oC to 25oC

Cob

12 to 36 hours

6 to 12 hours

Brick

24 to 48 hours

12 to 24 hours

Lath

48 to 120 hours

36 to 96 hours

Fire Resistance

Tests carried out on other hemp/lime materials show that the hemp/lime
will not sustain a fire. We are awaiting the testing of our own material.

We have
received very positive feedback since introducing this product. Our sales have
increased year upon year and a member of our team will be more than happy to
discuss Hempsulate with you and whether it is suitable for your project. Hempsulate
is available within a few days of ordering.